package javaweb.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;

import com.rpframework.utils.URLUtils;

/**
 * URL过滤
 */
public class URLFilter implements Filter {

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
			throws IOException, ServletException {
		HttpServletRequest servletRequest = (HttpServletRequest) request;
		chain.doFilter(new HttpServletRequestWrapper(servletRequest) {
			@Override
			public String getRequestURI() {
				return URLUtils.slashParse(servletRequest.getRequestURI());
			}
		}, response);
	}

	@Override
	public void destroy() {
	}

}
